<?php

if (! defined ( 'BASEPATH' ))
	exit ( 'No direct script access allowed' );
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------


/**
 * MS SQL Result Class
 *
 * This class extends the parent result class: CI_DB_result
 *
 * @category	Database
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/database/
 */
class CI_DB_mssql_result extends CI_DB_result {
	
	/**
	 * Number of rows in the result set
	 *
	 * @access	public
	 * @return	integer
	 */
	function num_rows() {
		return @mssql_num_rows ( $this->result_id );
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Number of fields in the result set
	 *
	 * @access	public
	 * @return	integer
	 */
	function num_fields() {
		return @mssql_num_fields ( $this->result_id );
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Fetch Field Names
	 *
	 * Generates an array of column names
	 *
	 * @access	public
	 * @return	array
	 */
	function list_fields() {
		$field_names = array ();
		while ( $field = mssql_fetch_field ( $this->result_id ) ) {
			$field_names [] = $field->name;
		}
		
		return $field_names;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Field data
	 *
	 * Generates an array of objects containing field meta-data
	 *
	 * @access	public
	 * @return	array
	 */
	function field_data() {
		$retval = array ();
		while ( $field = mssql_fetch_field ( $this->result_id ) ) {
			$F = new stdClass ();
			$F->name = $field->name;
			$F->type = $field->type;
			$F->max_length = $field->max_length;
			$F->primary_key = 0;
			$F->default = '';
			
			$retval [] = $F;
		}
		
		return $retval;
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Free the result
	 *
	 * @return	null
	 */
	function free_result() {
		if (is_resource ( $this->result_id )) {
			mssql_free_result ( $this->result_id );
			$this->result_id = FALSE;
		}
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Data Seek
	 *
	 * Moves the internal pointer to the desired offset.  We call
	 * this internally before fetching results to make sure the
	 * result set starts at zero
	 *
	 * @access	private
	 * @return	array
	 */
	function _data_seek($n = 0) {
		return mssql_data_seek ( $this->result_id, $n );
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Result - associative array
	 *
	 * Returns the result set as an array
	 *
	 * @access	private
	 * @return	array
	 */
	function _fetch_assoc() {
		return mssql_fetch_assoc ( $this->result_id );
	}
	
	// --------------------------------------------------------------------
	

	/**
	 * Result - object
	 *
	 * Returns the result set as an object
	 *
	 * @access	private
	 * @return	object
	 */
	function _fetch_object() {
		return mssql_fetch_object ( $this->result_id );
	}

}


/* End of file mssql_result.php */
/* Location: ./system/database/drivers/mssql/mssql_result.php */